//========================================================================
// GLFW 3.3 macOS - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would
//    be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
//    be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
//    distribution.
//
//========================================================================

#include <stdint.h>
#include <dlfcn.h>

#include <Carbon/Carbon.h>

// NOTE: All of NSGL was deprecated in the 10.14 SDK
//       This disables the pointless warnings for every symbol we use
#ifndef GL_SILENCE_DEPRECATION
#define GL_SILENCE_DEPRECATION
#endif

#if defined(__OBJC__)
#import <Cocoa/Cocoa.h>
#else
typedef void* id;
#endif

// NOTE: Many Cocoa enum values have been renamed and we need to build across
//       SDK versions where one is unavailable or the other deprecated
//       We use the newer names in code and these macros to handle compatibility
#if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
#define NSBitmapFormatAlphaNonpremultiplied NSAlphaNonpremultipliedBitmapFormat
#define NSEventMaskAny NSAnyEventMask
#define NSEventMaskKeyUp NSKeyUpMask
#define NSEventModifierFlagCapsLock NSAlphaShiftKeyMask
#define NSEventModifierFlagCommand NSCommandKeyMask
#define NSEventModifierFlagControl NSControlKeyMask
#define NSEventModifierFlagDeviceIndependentFlagsMask NSDeviceIndependentModifierFlagsMask
#define NSEventModifierFlagOption NSAlternateKeyMask
#define NSEventModifierFlagShift NSShiftKeyMask
#define NSEventTypeApplicationDefined NSApplicationDefined
#define NSWindowStyleMaskBorderless NSBorderlessWindowMask
#define NSWindowStyleMaskClosable NSClosableWindowMask
#define NSWindowStyleMaskMiniaturizable NSMiniaturizableWindowMask
#define NSWindowStyleMaskResizable NSResizableWindowMask
#define NSWindowStyleMaskTitled NSTitledWindowMask
#endif

typedef VkFlags VkMacOSSurfaceCreateFlagsMVK;
typedef VkFlags VkMetalSurfaceCreateFlagsEXT;

typedef struct VkMacOSSurfaceCreateInfoMVK {
  VkStructureType sType;
  const void* pNext;
  VkMacOSSurfaceCreateFlagsMVK flags;
  const void* pView;
} VkMacOSSurfaceCreateInfoMVK;

typedef struct VkMetalSurfaceCreateInfoEXT {
  VkStructureType sType;
  const void* pNext;
  VkMetalSurfaceCreateFlagsEXT flags;
  const void* pLayer;
} VkMetalSurfaceCreateInfoEXT;

typedef VkResult(APIENTRY* PFN_vkCreateMacOSSurfaceMVK)(VkInstance, const VkMacOSSurfaceCreateInfoMVK*, const VkAllocationCallbacks*, VkSurfaceKHR*);
typedef VkResult(APIENTRY* PFN_vkCreateMetalSurfaceEXT)(VkInstance, const VkMetalSurfaceCreateInfoEXT*, const VkAllocationCallbacks*, VkSurfaceKHR*);

#include "posix_thread.h"
#include "cocoa_joystick.h"
#include "nsgl_context.h"
#include "egl_context.h"
#include "osmesa_context.h"

#define _glfw_dlopen(name) dlopen(name, RTLD_LAZY | RTLD_LOCAL)
#define _glfw_dlclose(handle) dlclose(handle)
#define _glfw_dlsym(handle, name) dlsym(handle, name)

#define _GLFW_EGL_NATIVE_WINDOW ((EGLNativeWindowType)window->ns.layer)
#define _GLFW_EGL_NATIVE_DISPLAY EGL_DEFAULT_DISPLAY

#define _GLFW_PLATFORM_WINDOW_STATE _GLFWwindowNS ns
#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE _GLFWlibraryNS ns
#define _GLFW_PLATFORM_LIBRARY_TIMER_STATE _GLFWtimerNS ns
#define _GLFW_PLATFORM_MONITOR_STATE _GLFWmonitorNS ns
#define _GLFW_PLATFORM_CURSOR_STATE _GLFWcursorNS ns

// HIToolbox.framework pointer typedefs
#define kTISPropertyUnicodeKeyLayoutData _glfw.ns.tis.kPropertyUnicodeKeyLayoutData
typedef TISInputSourceRef (*PFN_TISCopyCurrentKeyboardLayoutInputSource)(void);
#define TISCopyCurrentKeyboardLayoutInputSource _glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource
typedef void* (*PFN_TISGetInputSourceProperty)(TISInputSourceRef, CFStringRef);
#define TISGetInputSourceProperty _glfw.ns.tis.GetInputSourceProperty
typedef UInt8 (*PFN_LMGetKbdType)(void);
#define LMGetKbdType _glfw.ns.tis.GetKbdType

// Cocoa-specific per-window data
//
typedef struct _GLFWwindowNS {
  id object;
  id delegate;
  id view;
  id layer;

  GLFWbool maximized;
  GLFWbool occluded;
  GLFWbool retina;

  // Cached window properties to filter out duplicate events
  int width, height;
  int fbWidth, fbHeight;
  float xscale, yscale;

  // The total sum of the distances the cursor has been warped
  // since the last cursor motion event was processed
  // This is kept to counteract Cocoa doing the same internally
  double cursorWarpDeltaX, cursorWarpDeltaY;

} _GLFWwindowNS;

// Cocoa-specific global data
//
typedef struct _GLFWlibraryNS {
  CGEventSourceRef eventSource;
  id delegate;
  GLFWbool finishedLaunching;
  GLFWbool cursorHidden;
  TISInputSourceRef inputSource;
  IOHIDManagerRef hidManager;
  id unicodeData;
  id helper;
  id keyUpMonitor;
  id nibObjects;

  char keynames[GLFW_KEY_LAST + 1][17];
  short int keycodes[256];
  short int scancodes[GLFW_KEY_LAST + 1];
  char* clipboardString;
  CGPoint cascadePoint;
  // Where to place the cursor when re-enabled
  double restoreCursorPosX, restoreCursorPosY;
  // The window whose disabled cursor mode is active
  _GLFWwindow* disabledCursorWindow;

  struct {
    CFBundleRef bundle;
    PFN_TISCopyCurrentKeyboardLayoutInputSource CopyCurrentKeyboardLayoutInputSource;
    PFN_TISGetInputSourceProperty GetInputSourceProperty;
    PFN_LMGetKbdType GetKbdType;
    CFStringRef kPropertyUnicodeKeyLayoutData;
  } tis;

} _GLFWlibraryNS;

// Cocoa-specific per-monitor data
//
typedef struct _GLFWmonitorNS {
  CGDirectDisplayID displayID;
  CGDisplayModeRef previousMode;
  uint32_t unitNumber;
  id screen;
  double fallbackRefreshRate;

} _GLFWmonitorNS;

// Cocoa-specific per-cursor data
//
typedef struct _GLFWcursorNS {
  id object;

} _GLFWcursorNS;

// Cocoa-specific global timer data
//
typedef struct _GLFWtimerNS {
  uint64_t frequency;

} _GLFWtimerNS;

void _glfwInitTimerNS(void);

void _glfwPollMonitorsNS(void);
void _glfwSetVideoModeNS(_GLFWmonitor* monitor, const GLFWvidmode* desired);
void _glfwRestoreVideoModeNS(_GLFWmonitor* monitor);

float _glfwTransformYNS(float y);

void* _glfwLoadLocalVulkanLoaderNS(void);
